Observation 52741: Amanita brunnescens f. straminea E.J. Gilbert
When: 2010-09-13
No herbarium specimen

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I’ve heard that
By: Eric Smith (esmith)
2013-04-17 03:11:20 BST (+0100)

name before, but hardly knew how to apply it. Thanks for the feedback Rod!

I searched for some better photos and regretfully couldn’t find any at all. Yes, by all means help yourself to any of these photos you wish!

The middle photo…
By: R. E. Tulloss (ret)
2013-04-16 01:08:21 BST (+0100)

shows a lot of interesting characters of the cap include some of the range of color of the cap and volval patches. Also the apparent sterile margin of the cap is something that is mentioned in my notes on other collections. So I’d like to use that photo on the WAO site.

Very best,


Hello, Eric.
By: R. E. Tulloss (ret)
2013-04-16 01:00:24 BST (+0100)

I received DNA sequences relating to this collection today. The sequences are a very good match for the taxon with a description growing at this location:


The text on the technical tab on that page points to an existing name that could possibly be identified with your material; unfortunately, that name is at the rank of “form” and doesn’t convey the association with the citrinoid taxa that is very apparent from merely looking at fresh material of this entity. The existing (possible) name is Amanita brunnescens f. straminea. The name straminea has already been used for a species in Amanita; so, if we continue to amass good data on the species into which your material falls, I will post a provisional name for the species on WAO.

Did you happen to get a photograph of the bulb of your material?

The pallid margin on the cap in your photographs is consistent with what we have been able to gather together on this taxon. Our impression is that the range of the species extends at least form Michigan to the Atlantic and southward to the northern border of Georgia. I understand that molecular evidence suggests that the species occurs in Florida.


material received.
By: R. E. Tulloss (ret)
2011-08-18 22:59:15 BST (+0100)


Created: 2010-09-14 02:26:50 BST (+0100)
Last modified: 2013-04-17 03:12:26 BST (+0100)
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